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Wilfrid Laurier University Faculty of Science
December 4, 2016
Canadian Excellence
Dr. Jayne Kalmar

Dr. Jayne Kalmar

Associate Professor, Kinesiology & Physical Education

Contact Information
Phone: 519-884-0710 ext.2033   |  lab 519-884-0710 ext.3334

Office Location: Bricker Academic Building, BA508
Office Hours: By appointment. Please email to set up a time.
Academic Background

Postdoctoral Fellowship, Spinal Cord Research Centre, University of Manitoba (2005-2008)

PhD (Biology), York University (November 2005)

MSc (Kinesiology), York University (September 1998)


Dr. Kalmar is currently recruiting MSc Students interested in 'Neural Activation of Muscle'.

Please click here for more information ...

Research Interests:

The purpose of my NSERC-funded program of research is to determine how spinal reflex circuits integrate input from the brain and peripheral sensory receptors to maintain optimal voluntary drive to muscle during fatigue.  I am also interested in the inhibitory pathways that modulate the excitability of the primary motor cortex during fatigue.  This research is significant because until we understand the central mechanisms that modulate muscle output in healthy people, we cannot fully understand the mechanisms of impaired motor function in injury, aging, and disease.

Current Funding:

NSERC Discovery Grant:  Spinal and Supraspinal Mechanisms of Fatigue


Vandenberk MS, Kalmar JM. (2014) An evaluation of paired motor unit estimates of persistent inward current in human motor neurons. Journal of  Neurophysiology. 2014 Feb 12. [Epub ahead of print] PubMed PMID: 24523524.

Powers KC, Cinelli ME, Kalmar JM, (2014) Cortical hypoexcitability persists beyond reported symptoms following a sport-induced concussion, Brain Injury (in press)

Powers KC, Kalmar JM, Cinelli ME. (2014) Dynamic stability and steering control following a sport-induced concussion. Gait Posture. 39(2):728-32. 

Powers KC, Kalmar JM, and Cinelli ME. (2014) Recovery of static stability following a concussion. Gait Posture. 39(1):611-4. 

Sharples S.A. and Kalmar J.M. (2012) Modulation of cortical excitability and interhemispheric inhibition prior to rhythmic unimanual contractions. Journal of Neuroscience Methods 30;210(2):178-86.

Kalmar J.M. (2012) Caffeine. Encyclopedia of Exercise Medicine in Health and Disease Mooren, F.C. & Skinner, J.S. (Eds.) Justus-Liebig-University Gießen: SpringerReference. pp.145-147.

Cahill F., Kalmar J.M., Pretorius T., Gardiner P.F., and Giesbrecht G.G. (2011)  Whole-body hypothermia has central and peripheral influences on elbow flexor performance.  Exp Physiol 96:528-538.

Kalmar, J.M., Button, D.C., Gardiner, K., Cahill, F., Gardiner, P.F. (2009) Caloric restriction does not offset age-associated changes in the biophysical properties of motoneurons. J. Neurophysiol. 101(2):548-57.

Button, D.C., Kalmar, J.M., Gardiner, K., Marqueste, T., Zhong, H.,  Roy, R.R., Edgerton, V.R., and P.F. Gardiner (2008) Does elimination of afferent input modify the changes in rat motoneurone properties that occur following chronic spinal cord transection? J. Physiol.(Lond.) 586(2):529-44.

Button, D.C, Kalmar, J.M., Gardiner, K., Cahill, F., and P.F. Gardiner (2007) Spike-frequency adaptation of rat hindlimb α-motoneurones J. Appl. Physiol. 102(3):1041-1050.

Kalmar, J.M., C. Del Balso, and E. Cafarelli (2006) Increased spinal excitability does not offset central activation failure.  Exp. Brain Res. 173(3):446-57.

Kalmar, J.M., E. Cafarelli (2006) Central excitability does not limit postfatigue voluntary activation of quadriceps femoris.  J. Appl. Physiol. 100:1757-1764 (article selected for editorial comment, see J. Appl. Physiol. 100:1749-1750)

Kalmar, J.M. (2005)  The influence of caffeine on voluntary muscle activation.  Med. Sci. Sports Exerc. 37(12): 2113-2119. (Symposium proceedings, Invited Review)

Kalmar, J.M., and E. Cafarelli (2004) Caffeine:  A valuable Tool to Study Central Fatigue in Humans?  Exerc. Sport Sci. Rev. 32(4): 143-147. (Invited Review, artwork selected for cover)

Kalmar, J.M., and E. Cafarelli (2004) Central fatigue and transcranial magnetic stimulation:  Effect of caffeine and the confound of peripheral transmission failure. J. Neurosci. Meth. 138: 15-26.

Walton, C.C., Kalmar, J.M., and E. Cafarelli (2003)  Caffeine increases spinal excitability in humans.  Muscle Nerve 28: 359-364.

Walton, C.C., Kalmar, J.M., and E. Cafarelli (2002)  The effect of caffeine on self-sustained firing in human motor units.  J. Physiol. (Lond.) 545(2): 671-679.

Kalmar, J.M. and E. Cafarelli (1999)  Effects of caffeine on neuromuscular function.  J. Appl. Physiol.  87(2):  801-808.

Additional Information

Courses Taught 

KP122 - Biodynamic Aspects of Physical Activity

KP220 - Human Physiology

KP425 - Neuromuscular Function in Exercise